Telegraph system for dividing received intelligence into groups



R. F. DIRKES July 14, 1931.

TELEGRAPH SYSTEM FOR DIVIDING RECEIVED INTELLIGENCE INTO GROUPS FiledJan. 31, 1930 '5 Sheets-Sheet l V 3mnemor .Fflzrkes Gitorneg July 14,1931. I R. F. DIRKES 1,814,902

TELEGRAPH SYSTEM FORDIVID ING RECEIVED INTELLIGENCE INTO GROUPS FiledJan 31,' 1930 5 Sheets-Sheet 2 Zsnncntor R 1 rkes July 14, 1931. R. F.DIRKES 1,814,9 02

TELEGRAPH SYSTEM FOR DIVIDING RECEIVED INTELLIGENCE INTO GROUPS FiledJan. 31, 1950 5 Sheets-Sheet 5 R. F, DIRKES July 14, 1931.

TELEGRAPH SYSTEM FOR DIVIDING RECEIVED INTELLIGENCE INTO GROUPS FiledJan 31, 1930 SSheets-Sheet 4 Gttorucg July 14, 1931. -F D.RKES v1,814,902

TELEGRAPH SYSTEM FOR DIVIDING RECEIVED INTELLIGENCE INTO GROUPS FiledJan. 31, 1930 5 Sheets-Sheet 5 Gttorneg Patented July 14, 1931 UNITEDSTATES PATENT: OFFICE f ROBERT F. DIR-KES, or JAMAIcA, NEW YoRK, ssIeNoRTO THE wEsrER UNIoN T LEGRAPH COMPANY, or NEW YORK, N. Y., A coroRA'rroN or NEW YORK I TELEGRAPH SYSTEM FOR DIVIDING- RECEIVEDINTELLIGENCE INTO GROUPS Application filed January 31, 1930. Serial No.424,966.

This invention relates to asystem for dividing received telegraphicintelligence into groups recorded upon separate printers. While it isparticularly adapted for use in dividing stock and'market quotationsbe-- tween different operators, it is applicable to various other uses.p

With the operation of the automatic brokerage quotation boards recentlyput into service it hasbecome the practice, due to the speed oftransmission needed, to divide the transmitting element of the quotationboard system into two parts, each one being controlled by a separateoperator and each transmitting unit transmitting quotations in which thefirst letter of the stock designation begins with the part of thealphabet allotted to that particular transmitting unit. In other wordsshould two transmitting elements be used to operate the full brokerageboard, it is customary for one operator through his associated mechanismto send all quotations with stock designations beginning with lettersfrom A to J and the other to sendall stock designations beginning withletters from K to Z. At the present time, it is the practice to have asecondary operator, called an editor, at each operating position whocrosses out the stocks which are not to be sent by his particularoperator. This method of operation is not all satisfactory, due to thefact that, first, it requires an .extra man to cross out quotations notneeded, and second, due to the speed of the received quotations, he isvery liable to miss a quotation which should have been crossed out andthereby disconcert the-sending operator. Furthermore, the -positionwhich he must occupyin order to cross out said stocks naturallyobscuresthe operators vision for fast retransmission.

The object of my invention is to provide a system which automaticallyedits the telegraphically received intelligence and records on eachtelegraph printing apparatus only those quotations or intelligencecharacters designed for that particular associated operator. I have thusobviated the necessity for the editor heretofore required to cross outthe portions of the received intelligence which is not to be sent to anyparticular operator or receiving printer. p y

In the following description. ofmy invention I shall refer to theaccompanying drawings in which Figure 1 is a diagrammatic illustrationshowing one embodiment of the invention;

Figure 2 illustrates a modification of the arrangement shown in Fig. 1;

Figures 3 and 4 are side elevation and top plan views "respectively, ofa printing telegraph machine known to telegraph engineers as a teletypeticker;

Figure 5 is an end elevation of the machine illustrated in Figs. 3 and4, showing an embodiment of my invention applied thereto;

Figures 6 and 7 are detail views of certain parts hereinafter referredto.

The printing telegraph machine which I have selected for the purpose ofillustration is of the same general type as that disclosed in the CreedPatent No. 1,639,213. It will be obvious that my invention is notdependent upon any particular printing telegraph machine but may be usedin association with various types of machines.

I will first describe the printing telegraph machine illustrated inFigs. 3, 4 and 5. This type of telegraph machine is a motor driventypewheel tape printer. The operation of the printer is controlled bycombinations of positive and negative impulses transmitted over the lineto which the printer is connected. All of the operations of the printerare determined by movement of the armature of a polarized magnetactuatedby the line im ulses.

he mechanism ofthe tape printer is operated from the shaft 10 of amotor, notshown, which is geared to the shaft 12 of the selector camdrum and the typewheel shaft 14. The cam drum 15 is driven through afriction clutch 16 and the printer press lever and tape feed mechanismare actuated through a friction clutch 17. The type wheel 18 is driventhrough a friction clutch on the shaft 14 as is also the typewheel stoparm 19.

The selector cam drum 15 consists of a hollow cylinder with twelve camlugs or fingers 20 projecting from its outer surface. Six of these camsare marking cams and six are spacing cams. F astened to the rear of thecylinder is an L-shaped stop arm 21. Fastened to the front end of thecylinder is a crimped disk, called a flutter cam 22 having fourteencrimps, seven projecting rearward and seven forward. The flutter campasses through the forked end 23 of the flutter lever 23.

The selector cam drum is slidable on a sleeve on the shaft 12, betweentwo stops. A spring 24 attached to the flutter lever tends to move thecam drum to the right against the front stop. The rear end of theflutter lever is provided wit-ha lug 23 which engages the end of thearmature 26 of the selector polarized magnet 25 when the armature is inmarking position. When the armature rests against the end of the flutterlever and prevents pivotal movement thereof, rotation of the cam drumwill cause the drum to be moved backward and forward by the action ofthe flutter cam as it passes through yoke 23*. This causes the markingcams 20 to be in alinement with the lower marking arms 29 of theselector levers 30 at the instant that each cam is passing over the endof the corresponding marking arm. When the armature is moved to the leftin spacing position, the flutter lever is free to move and the cam drumwill be slid to the right against its front stop. The flutter cam willcause the flutter lever to vibrate in and out as the cam drum isrotated. When the selector cam drum is in this position against itsfront stop, thespacing lugs or cams 20 will be in alinement with theupper spacing arms 28 of the selector levers.

The stop arm 21 attachedto the rear end of the cam drum has a horizontalportion which passes through a slot in the selector friction disk 32 sothat the drum rotates with the disk.

When the cam drum is nearing the end of its revolution and the stopsignal is received, the flutter lever will be against the end of thearmature thus= causing the cam drum to be shifted to the left againstits rear stop. This will cause the stop arm to project far enoughthrough the slot in the friction disk to be engaged by the stationarystop lug 34. When the next start signal is received, the'armature 26will move to the left into spacing position,

releasing the flutter lever and permitting the cam drumto move to theright against its front stop. This will disengage the stop arm 21 fromthe stop lug 34 and permit the drum to revolve.

The operating cam 35 is a combined internal and external cam, thetransfer and printing bail levers being controlled by the internalsurface and the tape feed bail by the external surface. The operatingcam is driven by two clutches. A friction clutch 17 initiates therotation and after the cam has rotated a few degrees a jaw clutch 36engages and carries the cam nearly to the end of its revolution'where itis disengaged by the lug 37, while the friction clutch 17 continues todrive the cam until it is stopped by a projec-. tion 38 on the camstriking against the inner end 39 of the cam release bail arm 39.

Shortly after the start of the rotation of theoperating cam 35, theroller on the end of the printing bail lever 40 rides to the peak of theinternal cam, thus lifting the rod 41 and rocking the printing bail 42carrying the printing hammer 43 and causing the hammer striker 45 topress the tape against the typewheel 18, thereby printing a character.As the printing bail roller ridesdown the cam, the roller on the end ofthe transfer bail lever 46 is riding up on the cam and as it reaches thepeak, the transfer bail 47 is rocked to force the transfer levers 48against the selector levers 30, whereby the character selectionpreviously set up in the selector levers is transferred to the codedisks 50. While the transfer bail roller is riding to the peak of'theinternal cam, the roller on the end of the feed bail lever 52 is ridingup on the external cam. The motion transmitted through the lever 52rocks the feed bail 53 and causes the feed pawl 54 to move upward andengage'the next tooth of the feed ratchet 56. Then as the roller on thelever 52 rides down the cam, the feed bail spring 57 moves the feed pawldownwardly, thus stepping the feed ratchet one tooth and through themedium of the feed wheel 58 and the pressure wheel 59 moves the tape 60forward one letter space.

The selector levers 30 are located at one side of the selector cam drumwith their arms 28 and 29 projecting above and below the drum so thatthey can be moved to either the spacing position or the marking positionby the lugs or cams 20 on the selector drum. The levers are engaged byinterposed flat springs to hold them in selected position until theselection has been transferred to the transfer levers.

The selector levers have four arms, the upper selecting arms 28 and 29and lower transfer arms 61 and 62. The ends of the selecting arms are'offset with respect to each other,

the lower or marking arms 29 being offset toward the back and the upperor spacing arms 28 being offset toward the front of the printmovement ofthe bail 47 an the arms 47" which carry the pin 47 upon which the on thepivot pin 65 carried on the end of the transfer levers are mounted,either the lug 48 or the lug 48 of the transfer levers will strikeagainst the corresponding arm 61 or 62 of the selecting levers,depending upon whether the corresponding selecting lever is in markingor spacing position. Thus the selection set up in the selector levers bythe lugs or cams 20 on the selector drum, will be transferred by themovement of the transfer levers 48 to the code disks 50, It will 7 benoted that while there are six transfer lealinement with either theletters striking f hammer or the figures striking hammer as the shiftarm 64 is moved in one. direction or the other and thereby rocks theyoke 44 printing bail 42. p

The five code disks 50 are provided with a series of notches 67 aroundtheir periphery and above these notchesextend stop pins 68 which areheld in slots 71 in three guide disks.

7 0*, 70 and 70 under the tension of circular coil springs 72 whichpress the pins against the edges of the disks. The friction of themarking, causing the armature 26 of the sepins upon the. disks isminimized by small rollers 73 placed on the pins. The code disks can berotated slightly to either of two positions. The cou'nter clockwiseposition is the ma'rking position while the opposite position is thespacing position. With the code disks set in any particular combination,there will be one and only one series of notches which will be alined topermit the corresponding pin 68 to be moved by the springs into saidalined notches and into the path of the typewheel stop arm 19, thusdetermining the code character to be printed.

The t pewh'eel 18 and typewheel stop arm 19 are xed to the typewheelshaft 14, the latter being driven from the shaft 10 of the driving motorthrough suitable gears and a friction .clutch 13. When the stop arm 19is engaged by a stoppin 68, the friction clutch permits the stopping ofthe typewheel to print a character.

The functions of the various parts and mechanism of the printer will beunderstood from the previous detailed descriptlon but it may be well tofollow through the complete operation of the printer in select ng andprinting a character. Suppose, for instance, that the letter Y is beingtransmitted over the line to the printer. The transmittlng distributorat the distant end of the line first sends out a start impulse which isalways spacing.. This impulse is received by the .coils 25 of the polarmagnet and causes the spacing.

initiating the rotation of the selector cam drum 15. The next impulse isa marking impulse, which moves the armature 26 to the right or markingside. As the cam drum rotates, the flutter lever will be moved outwardby the flutter cam thus permitting the end of the armature to move intothe path of the lug 23 of the flutter lever and block its furthermovement. WVhen the flutter lever is thus blocked by the armature, theflutter lever fork 23 will move the drum as it rotates, so that the'No.1 marking lug on cam 20 on the drum will be moved into alinement withthe marking arm 29 of the selector lever 30 and the cam lug willtherefore shift the selector lever to the marking position.

The next impulse of the Y selection is The armature 26 therefore movesto the spacing side, releasing the flutter cam lever and permitting thecam drum to move to its front stop. Hence No. 2 spacing cam lug 20 willbe in line with No. 2 selector lever and as the drum revolves, the No. 2selector lever will be shifted to spacing position.

The third impulse of the Y selection is lector magnet to move again toits marking side and hence as the third marking cam 20 approaches themarking arm 29 of the third selector lever the flutter cam will move theflutter lever outward, thus permitting the armature to slip under theendof the lug I 23 and block the movement of the lever. As thedrumrotates, the flutter lever'being blocked, the flutter cam 22 will causethe camdrum to move toward the left bringing the third marking cam intoalinement with the marking arm 29 of the third selector lever and movingit to marking position.

The fourth impulse is a spacing impulse and consequently the armature 26will be moved to the spacing side, releasing the flut-.

ter lever and permitting the No. 4 spacing cam 20 on the selector druinto engage the spacin arm 28 on the fourth selector lever and shift it tospacing position.

The fifth impulse is marking and consequently the armature 26 will swingto the marking side and will block the flutter lever thereby causing thefifth markingcam lug 20 to move the fifth selector lever into markingposition. v

The sixth impulse is a spacing impulse and consequently the, sixthselector lever w1ll be -moved to the spacingposition in the mantant end.This impulse is always marking and causes the armature 26 to block theflutter lever 23 so that the cam drum will be moved toward the left andjust as one revolution is completed, the stop arm 21 strikes the stoplug 34 thereby stopping the rotation of the cam drum which will remainat rest until the reception of the next start impulse.

During the rotation of the selector cam drum as just described, andafter the reception of the fourth impulse, a depression in the edge ofthe'selector friction disk 32 comes opposite the end of the cam-releasebail 75, thus rocking the bail and removing the lug 39 on its oppositearm from engagement with the lug 38 on the friction clutch 17 therebyreleasing the operating cam 85 and permitting it to rotate. Shortlyafter the fer bail 47 to lift transfer levers 48 upwardly so that theirlugs 48 and 48 will strike one or the other of the arms 61 and 62 of thecorresponding selector levers, thereby transferring the code combinationwhich has been set up on the selector levers by the cam lugs on the camdrum, to the code disks 50. 'At this time, the selector cam drum hasbeen stopped 'by the engagement of thestop arm 21 with the stop lug 34,but the operating cam 85 continues to revolve, thereby actuating thelever 52 connected to the tape stepper bail 53 and causing the spacingof the tape for the previous letter before the cam completes itsrotation and is stopped by the engagement of the lug 38 with the lug 39of the cam release bail arm. The printing of the letter Y, the selectionof which has just been described does not take place until the nextselection is received and the cam drum has revolved far enough torelease the operating cam.

When the code selection was transferred from the selector levers 30through the transfer levers 48 to the code disks 50, the shiftingmovement of these code disks,'in assuming their new positions, causedthe previously selected pin which was at that time holding the typewheeLstop arm to move outward thereby permitting the stop arm and type wheeltorevolve until the stop arm struck against the stop pin correspondingto the Y selection which was permitted to move inward, due to thealinement of the notches in the code disks being in this position. It

will be clear, therefore, from the above description that a characterwhich is selected during one revolution of the cam drum is not printeduntil the next revolution of the cam drum. 'In other words, while onecharacter is being selected, the preceding character is being printed.

I have shown schematically in Fig. 1, an arrangement of apparatusembodying telegraph machines of the type previously described, fordividing the received stock quotations or other intelligence intoseparate groups or divisions and recording' the same upon two or moretelegraph printers or receiving instruments. The division is controlledby the initial character in each group of characters, such as theabbreviations used to designate certain stocks. It is customary for oneoperator to send all quotations with stock designations beginning withletters from A to J and the other to send all stock designationsbeginning with letters from K to Z. If desired, a special codecombination could precede each group when switching is necessary but inthis description the first letter of the actual intelligence characterscontrols the switching means.

All of the quotations are received by the main distributing receivinginstrument, indicated diagrammatically at A by one of the circulartensioning springs 72 and stop pins 68. This machine differs from themachine shown in Figs. 3, 4 and 5, in that the typewheel 18 andtypewheel stop arm 19 are omitted. In place of these I provided two ormoreseries or groups of contacts, preferably in the form of spring clips80, one for each of the stop pins 68, arranged in a circle andpositioned so that the stop pin which is permitted to move inwardly bythe alined notches in the five selector disks which have been selectedby any code combination, will enter the corresponding spring clip andthereby close an electrical circuit for the purpose hereinafterdescribed. The pins are grounded by grounding one or more of thecircular spring bands 72. A polar relay R of the Wheatston'e type hasone end of each coil connected to the respective groups of springcontacts and a common connection from the other terminals of the coilsconnected to a contact 85 of switch S, the other terminal 86 beingconnected to positive battery. Relays R and R are the usual non-polarrelays. The position of the contact arm of switch S is controlled byswitch lever 64' which is substituted for the shift arm 64, connectingthe sixth transfer lever and actu ated by the sixth pulse of thecodecombination.

I have indicated diagrammatically two telegraph printers A and A betweenwhich the stockj'quotations or received intelligence is to be divided,these machinesbeing of the type illustrated in Figures 3, 4 and 5, the

' latter showing the relative position and arrangement of said nevelfeatures of my invention which are indicated diagrammatically inFigure 1. In telegraph printers as at present used, the press hammer 43strikes directly against the printing hammer 45 to press the tapeagainst the characters on the typewheel 18. Instead of this arrangementI have interposed an intermediate hammer 90 carried on an arm 91,slidable through a guide 92 and swiveled on the upper free end 'whichwithdraws the; press wheel from the tape feed wheel 58 when it isattracted by'the magnet 96, thus stopping the forward motion of the tape60. The machine A is in all respects the same as the printer A Theoperation of the organization illustrated in Fig. 1 will now be apparentfrom the previous description of the several parts. Let us suppose thata stock quotation beginning with the letter L- is being received andthat the code combination for the letter L has been set up on the codedisks so that the stop pin corresponding to the letter L has been forcedby the springs 72 into the corresponding spring clip as indicated inFig. 1. It will be noted that the clips asso- -ne"s 94' and 96 maintainthe printer A in- Thesucceeding figures of this ciated with all lettersfrom A to J are connected in parallel and in circuit with the left handcoil of the Wheatstone relay R while all the pins from K to Z areconnected in paralleland in circuit with the right hand coil of thepolar Wheatstone relay R Hence the right hand coil of the relay R is nowconnected to ground through the L stop pin and the grounded spring 72.Concurrently with the setting up of the L selection on the selectordisks, the sixth pulse of the code combination caused the shift fork 64to move the contact arm of the switch to its left hand or letterscontact 85, carrying with it the connection to condenser 98. Thecondenser was charged by connection with positive battery when theswitch arm was against its right hand or figures contact. The dischargeof the condenser through contact 85 and the.

right hand coil of the Wheatstone polar relay R and through the L stop.pin and clip to ground through the grounded spring ring 72, causestherelay R to move its tongue against its right hand contact, therebyapplying positive battery to the coil of relay R Positive battery isthereupon connected through the armature 'of arelay R to the magnets 94'and 96' of the printer A These. magnets withdraw the intermediate hammer90 and the press roller 59, thus rendering the printer A inefiective.The letter L will, therefore, be printed on the tape of the printer Abut will not be printer A The second letter of the stock quotation beingreceived, will prepare a path by grounding one or the other of the coilsof the relay R through the selected stop pin and corresponding clip, butinasmuchas the shift lever 64 remains against the letters contact 85, nocurrent can flow through the relaycoil because the condenser 98 wasdischarged when printed on the tape of v the first letter was selected.Hence the conditions will remain unchanged and the second letter will berecorded upon the tape of the printer A the printer A remaininginefiective. I

When the first figure of the quotation is received and set up on thecode disks of the main distributing receiver A the sixthpulse willsimultaneously cause the shift lever 64' to move the contact arm 'of theswitch. S

against the right hand 'figures contact 86 thereby causing the condenser98 to receive acharge from positive battery. Simultane'-' ously one ofthe stop pins 68 is moved inwardly into engagement with thecorresponding spring clip contact 80 and prepares a circuit through oneof the coils of the main relay R but this circuit is open at the contact85' and hence the armature of the polar relay R still remains inengagement with its right hand cont-act to which it was moved when theinitial letter L was received. Accordingly the relay R is stillenergized and the magoperative.

quotation will be received in the same manner as the status of the relayR and its associated printer A will remain unchanged until the initialletter of the succeeding quotation is received. The code combinations ofletters and figures are set up simultaneously in the code disks of thethree machines A A and A and consequently each stock quotation orreceived intelligence is printed either by the printer A or by theprinter A (If the next received quotation has an tial letter in the sameconnected groupas the preceding quotation, the operation above describedwill be repeated and the group of letters and figures will again beprinted on the tape of the printer A Let us assume, however, that theinitial letter is in the other group, for example beginning with theletter B. The engagement of the stop pin corresponding to the letter Bwith its spring clip contact 20 connects the left hand 'coil of theWheatstone polar relay R to ground and as the shift arm64"simultaneously moves p the arm of switch .S againstfits letterscontact 85, the condenser 98 discharges through said left hand relaycoil thereby closing a circuit from positive battery through coil ofrelay R and breaking the circuit through the coil of relay R Currentthen flows from positive battery through the armature of relay R toenergize magnets 94 and 96 of the associated printer A thereby renderinginefi'ectual the printing hammer and the tape stepper of this printer.Upon deenergi zing the relay R and the magnets 94 and 96' of the printerA the intermediate hammer 90 and the press roller 59 were restored tooperative position so that this group of letters and figures will berecorded upon the printer A It will be remembered that almost a completecycle of operations is made between the time the stop pin 68 and theshift lever is actuated by the setting up of a code combination in theselector disks, and the time when the press hammer is actuated and thetape is stepped ahead, so that ample time is allowed for theintermediate hammer 90 to return to its normal position before theselected character is printed.

It is obvious from the above description that this invention hasprovidedfirst, a mechanism which automatically controls the selection ofone of two or more circuits dependent upon the mechanical selection ofthe initialcharacter of a group of selected characters, and second, theuse of said selected circuit to automatically control the operation ofone of a number of printers or receiving instruments in .order toeii'ect the elimination of intelligence which is not to be printed onsaid receiving instrument.

In the arrangement just described, the quotations rinted upon the tapeof either printer A or 3 follow each other with no space interpositionso that the operator who observes the quotations on the .tape of eithermachine does not know whether other quotations have been made by theother printers.

In Figure 2 I have shown an arrangement for causing a space to beinterposed between successive quotations on the tape of either machinewhenever a quotation is made on the other printer, thus indicating tothe operator the omission of a quotation from his tape. The elements orparts of the apparatus shown in igure 2 which are the same as thecorresponding parts in Figure 1 require no further description. Insteadof connecting the magnets 94 and 96 in series, I arrange these magnetsin separate circuits, the magnets 94 being controlled by the relays Rand R as in Figure 1, but the magnets 96 being controlled by auxiliaryrelays R and R The instant of operation of the relays R and R isdetermined by contacts controlled by the operation of the tape stepperlever 53 (see Fig. 5).

Let us follow the operation of this arrangement by citing a particularexample.

a quotation and that the Z stop pin has been moved inwardly in thenotches of the selector disks of the main distributor receivinginstrument A in the manner previously described and that it has applieda ground through the spring 72 or the frame of the machine to the righthand coil of the Wheatstone polar relay R and simultaneously the shiftfork 64', by reason of the received selection, moves the arm of switch Afrom the figures contact 86 to the letters contact 85. The discharge ofthe condenser 98 through the right hand coil of polar relay R causesits-tongue or armature to close a circuit from positive battery throughthe coil of relay -R The armature of this relay closes a circuit frompositive battery through magnet 94 of printer A thereby withdrawing theintermediate hammer 90 and rendering the action of the press hammer 43inefi'ective. The circuit from positive battery through the tongue orarmature of relay R and the coil of auxiliary relay R has not energizedthe latter as yet, due to the interposed resistance of say a 1000 ohmsat 99. It will beremembered that there is quite a time interval betweenthe setting up of a code combination on the selector disks and theoperation of the tape stepper lever 53 and hence this time intervaloccurs between the energization of the relay R and the relay R When theoperating cam 35 causes the operation of the tape stepper-bail and lever53,

the latter closes the contacts 100, thereby,

shunting the 1000 ohm resistance, thus causing the actuation of therelay R It will be noted that any further operation of the contacts 100by the lever 53 will not cause the relay R to release its armature'sincea sufficient current will flow through the resistance 99 to hold thearmature after it has once been actuated. Upon the actuation of therelay R a circuit is closed from positive battery through its armatureto energize magnet 96 which thereupon withdraws pressure roller 59 fromengagement with the tape feed roller 58, thus rendering the feed of theprinter inefli'ective. Inasmuch as the tape stepper lever 53 is firstmoved upwardly by the cam 35 and then moved downwardly by its spring 57,the contacts 100 are closed at the end of the stroke of the tape stepperlever and consequently the tape has already been stepped forward onespace before the magnet 96 has'been actuated. Thus the relay in theactuation of the magnet 96 after the actuation of the magnet 94 causesthe spacing of the tape although the printing has been renderedineffective by the prior actuation of the magnet 94: withdrawing the intermediate hammer 90. The status of the until the'reception of theinitial letterof the s next succeeding quotation. Let us assume that Z1s the initial letter of Let us suppose that the initial character ofthe next quotation is a letter in the first part of the alphabet whichcauses the armature or tongue of the polar relay R to engage its lefthand contact, energizing the relay 11- lowed immediately upon theshifting of the armature of relay R to its left hand contact, therebyclosing a circuit through the magnet 94 of printer A which withdrew theintermediate striker 90 from the printer mechanism. As in the previousinstance, the operation of relay R is delayed until the tape stepper arm53 is actuated to close the contacts 100 and shunt the 1000 ohmresistance,

so that again in this case the tape feeding mechanism of the printer Ais allowed to function for one spacing of the tape following therestriction of the printing mechanism. The selected characters of thisquot-ation are printed on the tape of machine A in the manner previouslydescribed.

I claim:

1. The method of classifying received intelligence in a telegraph systemwhich consists in automatically directing the intelligence into one oranother predetermined channel determined by the initial character ineach group of intelligence characters.

2. In a telegraph system wherein the received intelligence is arrangedin groups of characters comprising a letter or letters followedbyfigures, the method of classifying said intelligence which consists indirecting the groups into different channels determined by the initialletter of each group. p

3. In a telegraph system wherein the received intelligence is arrangedin groups of characters, the method of classifying said groups whichconsists in receiving all of said intelligence upon a plurality ofreceiving instruments and causing the initial character of each group toselect the instrument upon which the group shall be recorded andpreventing other 'of said instruments from recording the same. i

4. In .atelegraph system in which the transmitted intelligence isconstituted of groups of characters, a. plurality of receiving recordinginstruments and means actuated by the received intelligence to rendercertain of said receiving instruments ineffective to record certain ofsaid groups and permitting other of said instruments to record the same:

5. In a telegraph system in -which the transmitted intelligence isconstituted of groups of characters, a plurality of receivinginstruments each connected to TQCGIVG transmitted intelligence iscomposed all of the transmitted intelligence, certain 1 of saidinstruments having means to render the recording function inoperative,and means associated with one of said instruments responsive to theinitial character of each group to determine which instruments shallfunction of record and which instruments shall not record theintelligence group.

6. In a telegraph system in which the transmitted intelligence iscomposed of groups of characters, a plurality of receiving, instruments,each connected to receive all of the transmitted intelligence, certainof said instruments having electromagnetic means adapted when actuatedto render the printing and tape stepping functions inoperative, and oneof said instruments having means for controlling the operation of saiding instruments being provided with nullifyi'ng means to render theprinting function ineffectual, and said editing instrument hav-' ingmeans connected to each of said nullifying means and responsive to theinitial character of each received word or group of characters, to causethe operation of any of said nullifyingmeans and permitting the otherrecording instruments to function 8. In a telegraph system in which thegroups of characters, a plurality of receiving instruments, eachconnected to receive all of the transmitted intelligence, certain ofsaid instruments having electro-magnetic means adapted when actuated torender the printing function inoperative and other electromagnetic meansto render the tape stepping function inoperative, and one of saidinstruments having means responsive to the initial character of eachgroup of characters to conv trol the operation of one or the otherreceiving instrument by first actuating the electromagnetic meansconnected with the printing function and subsequently actuating theelecmined by the initial code combination in any Word or group ofreceived characters.

10. In a printing telegraph system havlng a plurality of printinginstruments connected to record the received intelligence, the

method of assigning different portions of the intelligence to differentinstruments which consists in controlling the respective instrumentsbythe initial character in each group of intelligence characters. v

11. In a printing telegraph receiver for recording groups of characters,selector mechanism responsive to received code combinations of impulses,a typewheel positioned by said selector mechanism, a printing hammeradapted to press a tape against said type-' wheel, a striking hammeroperating to actuate'said printing hammer, and means controlled by theinitial code combination of predetermined groups of characters torendersaid striking hammer ineffectual.

12. In a printing telegraph receiver for recording groups of characters,selector mechanism responsive to received code combinations of impulses,a typewheel positioned by said selector mechanism, a printinghammeradaptedto press a tape against said typewheel, an auxiliary membernormally in alinement with said hammer, a striking hammer operating whenactuated to press said member against the printing hammer, and

'means controlled by the initial code combination of predeterminedgroups of characters to withdraw said member and thereby render I so themovement of the striking hammer ineffectual.

13. In a printing telegraph receiver for recording groups ofintelligence, selectori wheel, tape feed mechanism, and means responslveto certain code combinations for rendering said printing and'tape feedmech- I anlsms inefi'ectual.

14. In a printing telegraph receiver for recording groups ofintelligence, selector mechanism responsive to permutation codecombinations of impulses, a typewheel positioned by said selectormechanism, printing mechanism to force a tape against said type wheel,tape feed mechanism,-and means responsive to certain code combinationsfor rendering said printing mechanism ineffectual and thereafterrendering said tape feed mechanism inefl'ectual.

15. In a printing telegraph system, a plurality of receivingprinters'responsive to received code combinations of impulses, anediting or directing receiving instrument having selectors responsive tocode combinations of impulses, circuit controllers operated b saidselectors, and means governed by sai controllers to render oneorafiother'of said re- ROBERT F. DIRKES.

DISCLAIMER 1,814,902.R0bert F. Dirlces, Jamaica, N. Y. TELEGRAPH SYSTEMFOR DIVIDING RECEIVED INTELLIGENCE INTO GROUPS. Patent dated July 14,1931.

Disclaimer filed June 21, 1935, by the patentee, the assignee, WesternUnion Telegraph Company, assenting.

Hereby disclaims the system defined in claim 4 of said Patent No.1,814,902, except when the expression means actuated by the receivedintelligence to render certain of said receiving instruments ineffectiveto record certain of said groups comprises a device mechanicallyconnected to each instrument.

[Ofiicial Gazette July 23, 1935.]

